A novel dual-chamber bag powder filling device

Abstract

This utility model relates to the field of powder-liquid dual-chamber bag production technology, and discloses a novel powder filling device for powder-liquid dual-chamber bags, including a clamp conveying system and a powder filling system. The clamp conveying system is used to feed the powder-liquid dual-chamber bag into the powder filling system, with the powder chamber of the bag positioned above the liquid chamber. The powder filling system includes a powder storage tank, a weighing mechanism, and a filling mechanism. The weighing mechanism includes a weighing module and a rotating weighing scoop. The weighing module is used to measure the mass of the rotating weighing scoop containing powder. The powder storage tank outputs powder to the rotating weighing scoop. When the weighing result is qualified, the rotating weighing scoop flips over and pours the powder into the filling mechanism, which then fills the powder chamber. This utility model, by adding a rotating weighing scoop, uses a powder feeding screw to output powder into the rotating weighing scoop for online powder weight detection. Only when the weight is qualified is the powder dispensed into the powder chamber of the dual-chamber bag, thereby precisely controlling the dosage of powder filled into the powder chamber.

Description

Technical Field

[0001] This utility model relates to the field of powder-liquid dual-chamber bag production technology, and in particular to a novel powder-liquid dual-chamber bag powder filling device. Background Technology

[0002] The powder-liquid dual-chamber bag is a ready-to-use infusion product. The bag body is made of a transparent co-extruded film. The product consists of two parts: a liquid chamber containing the injectable solvent and a powder chamber containing the drug powder, separated by a weakly welded partition. During use, medical personnel simply squeeze the liquid chamber to open the partition, allowing the injectable solvent in the liquid chamber and the drug powder in the powder chamber to mix thoroughly before intravenous infusion. While this method simplifies the preparation process, the manufacturing requirements for the powder-liquid dual-chamber bag are higher than those for traditional infusion products. Currently, the powder packaging process in the powder-liquid dual-chamber bag production line is as follows:

[0003] After being sterilized, the double-chamber bags filled with the liquid medicine are sent to the powder dispensing room. The double-chamber bags are then hooked onto a circular conveyor rail by a bag-loading robot, where positioning clamps hold and secure the bags. The circular conveyor rail then moves the double-chamber bags to the bag-mouth cutting station, where a telescopic blade cuts open the bag opening at the powder chamber. The opened double-chamber bags are then transferred to the powder dispensing station, where the dispensing process is completed within an isolator. The powder is dispensed into the powder chamber of the double-chamber bag via a powder feeding screw. After dispensing, the double-chamber bags are transferred along the circular conveyor rail to the cutting and welding station. The welding mold is heated to a set temperature by a heating tube to complete the tail cutting and welding. The welded double-chamber bags are then transferred to the tail cooling station for cooling. Finally, the robot removes the welded double-chamber bags from the clamps and places them on the conveyor belt, completing the powder filling process.

[0004] The powder-liquid dual-chamber bag products manufactured using the above process suffer from problems such as inaccurate control of powder dosage within the filling chamber and high defect rates because the powder dispensing dosage is controlled solely by screw speed or volume. Furthermore, while ensuring aseptic technique and product quality, improving production efficiency and reducing production costs are also crucial factors that companies need to consider. Utility Model Content

[0005] To address the problems existing in the prior art, namely the difficulty in accurately controlling the dosage of powder in the powder chamber of the current powder-liquid dual-chamber bag production method, the present invention aims to provide a novel powder filling device for powder-liquid dual-chamber bags. By adding a rotating weighing scoop above the powder chamber, the powder is output into the rotating weighing scoop by a powder feeding screw. The rotating weighing scoop performs online detection of the powder weight, and only when the weight is qualified is the powder dispensed into the powder chamber of the dual-chamber bag, thereby accurately controlling the dosage of powder filled into the powder chamber.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A novel powder-liquid dual-chamber bag filling device includes a clamp conveying system and a powder filling system. The clamp conveying system is used to feed the powder-liquid dual-chamber bag into the powder filling system. On the clamp conveying system, the powder-liquid dual-chamber bag is positioned with the powder chamber above the liquid chamber. The powder filling system includes a powder storage tank, a weighing mechanism, and a filling mechanism. The weighing mechanism includes a weighing module and a rotating weighing scoop mounted on the weighing module. The weighing module is used to measure the mass of the rotating weighing scoop containing powder. The powder storage tank outputs powder into the rotating weighing scoop. When the weighing result is qualified, the rotating weighing scoop flips over and pours the powder into the filling mechanism, which fills the powder chamber.

[0008] The present invention is further configured to include a powder chamber cutting system and a tail welding system. The clamp conveying system drives all powder-liquid dual-chamber bags to enter the powder chamber cutting system, the powder filling system and the tail welding system in sequence. The powder chamber cutting system is used to cut open the powder chamber at the tail of the powder-liquid dual-chamber bag, and the tail welding system is used to weld and seal the powder chamber of the powder-liquid dual-chamber bag.

[0009] The present invention is further configured such that: the filling mechanism includes a retainer, a powder filling funnel and a driving cylinder; the powder filling funnel is installed on the retainer and located above the powder-liquid dual-chamber bag; the bottom of the powder filling funnel is aligned and can be inserted into the powder chamber; and the driving cylinder is used to drive the retainer to rise and fall.

[0010] The present invention is further configured such that: the powder filling system also includes a bag opening mechanism, the bag opening mechanism includes a bag opening cylinder and a bag opening suction cup, the bag opening cylinder is used to drive the bag opening suction cup to move closer to or away from the powder chamber, and the bag opening mechanism is provided on both sides of the powder-liquid dual-chamber bag, and the bag opening suction cups on both sides of the powder-liquid dual-chamber bag respectively adsorb the bag body on both sides of the powder chamber.

[0011] The present invention is further configured such that: the powder filling system also includes a bag opening visual inspection mechanism, the bag opening visual inspection mechanism is aligned with the top opening of the powder chamber, and the bag opening visual inspection mechanism is used to detect in real time whether the powder chamber is open.

[0012] The present invention is further configured to include a gas filling system, wherein the clamp conveying system delivers the powder-liquid dual-chamber bag from the powder filling system into the gas filling system, the gas filling system includes an inflation pipe aligned with the powder chamber, and gas can be filled into the powder chamber through the inflation pipe.

[0013] The present invention is further configured such that: the gas filling system further includes an air curtain box and a gas pipeline, the air curtain box is located directly above the powder-liquid dual-chamber bag, and the gas pipeline is used to uniformly deliver gas into the air curtain box to form a vertically downward air curtain.

[0014] The present invention is further configured to include a tail welding system, a tail cooling system, and a tail welding visual inspection system. The fixture conveying system sequentially feeds the powder-liquid dual-chamber bag, which is filled by a gas filling system, into the tail welding system, the tail cooling system, and the tail welding visual inspection system. The tail welding system is used to weld and seal the powder chamber of the powder-liquid dual-chamber bag. The tail cooling system is used to cool the powder chamber after welding. The tail welding visual inspection system is used to inspect the welding sealing quality of the powder chamber.

[0015] The present invention is further configured to include an ion air system and a pre-opening bag system. The ion air system is located upstream of the powder chamber cutting system, and the pre-opening bag system is located downstream of the powder chamber cutting system and upstream of the powder filling system. The ion air system performs ion air purging on the powder-liquid dual-chamber bag, and the pre-opening bag system is used to pull the opening of the powder chamber.

[0016] In summary, the beneficial effects achieved by this utility model are as follows:

[0017] (1) The amount of powder output by the powder feeding screw in the powder storage bucket first enters the rotary weighing scoop. The weighing module weighs and confirms the rotary weighing scoop containing the powder. Only when the weighing result is qualified, the rotary weighing scoop flips over to pour the powder into the filling mechanism. The filling mechanism then fills the powder into the powder chamber, thereby accurately controlling the amount of powder filled into the powder chamber and avoiding problems such as high product defect rate and high rework cost caused by inaccurate powder filling amount.

[0018] (2) The powder filling system is not only equipped with a bag opening mechanism to open the powder chamber and keep the powder chamber opening always open, but also equipped with a bag opening vision detection mechanism to detect the opening status of the powder chamber in real time. Powder filling is only carried out in the powder chamber when the opening is open, to prevent insufficient powder filling in the powder chamber and overflowing powder from contaminating the equipment and working environment due to powder chamber adhesion and folding.

[0019] (3) When filling the powder chamber with protective gas through the inflation pipe, the air curtain box can form a vertically downward air curtain, thereby enveloping the inflation pipe and the powder chamber in the gas atmosphere formed by the protective gas, forming an effective gas atmosphere isolation, and further preventing impurities such as oxygen, water vapor, and carbon dioxide in the surrounding air from being carried into the powder chamber by the airflow.

[0020] (4) Set up a common fixture conveying system for each subsystem. The fixture conveying system will send the powder and liquid double chamber bag into each subsystem in sequence. The time for transferring and transporting the powder and liquid double chamber bag between each process will be greatly shortened. At the same time, the degree of automation and production speed will be improved, which will help reduce production costs. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the specification will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a schematic diagram of the structure of the novel powder-liquid dual-chamber bag powder filling device of this utility model;

[0023] Figure 2 This is a schematic diagram of the powder filling system in this utility model. Figure 1 ;

[0024] Figure 3 This is a schematic diagram of the powder filling system in this utility model. Figure 2 ;

[0025] Figure 4 This is a schematic diagram of the powder filling system of this utility model after removing part of the structure;

[0026] Figure 5 for Figure 4 A magnified view of part A in the middle;

[0027] Figure 6 This is a schematic diagram of the bag-hanging clamp in a clamping conveyor system;

[0028] Figure 7 This is a schematic diagram of the gas filling system in this utility model. Figure 1 ;

[0029] Figure 8 This is a schematic diagram of the gas filling system in this utility model. Figure 2 .

[0030] In the diagram: 1. Frame; 2. Clamping and conveying system; 201. Bag hanging clamp; 2011. Limiting post; 2012. Swing arm; 2013. Rotating shaft; 2014. Abutment rod; 202. Conveyor belt; 3. Powder-liquid dual-chamber bag; 31. Powder chamber; 32. Liquid chamber; 4. Ionizing air system; 5. Powder chamber cutting system; 6. Pre-opening bag system; 7. Powder filling system; 701. Bag opening mechanism; 7011. Bag opening cylinder; 7012. Bag opening suction cup; 702. Bag opening vision inspection mechanism; 703. Clamp 7031. Pneumatic cylinder; 704. Push rod; 705. Powder temporary storage bucket; 706. Powder feeding funnel; 707. Weighing mechanism; 707. Mounting bracket; 707. Weighing module; 707. Rotary weighing scoop; 708. Filling mechanism; 709. Holder; 7000. Powder filling funnel; 800. Gas filling system; 801. Air curtain box; 802. Gas pipeline; 803. Inflation pipeline; 9. Tail welding system; 10. Tail cooling system; 11. Tail welding visual inspection system. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. For ease of explanation, the terms "vertical", "horizontal", "left", "right", "upper", "lower", "inner", "outer", "bottom", etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0032] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0033] As attached Figure 1 As shown, a novel dual-chamber bag powder filling device includes a frame 1, a clamp conveying system 2, an ion air system 4, a powder chamber cutting system 5, a pre-opening bag system 6, a powder filling system 7, a tail welding system 9, a tail cooling system 10, and a tail welding visual inspection system 11.

[0034] Rack 1 provides support and a mounting platform for the various subsystems.

[0035] The clamp conveying system 2 is used to transfer the powder-liquid dual-chamber bag 3 between various subsystems. The clamp conveying system 2 includes a conveyor belt 202 and a bag-hanging clamp 201 installed and fixed on the conveyor belt 202. The powder-liquid dual-chamber bag 3 is suspended and fixed on the bag-hanging clamp 201 by a robotic arm. Furthermore, the powder-liquid dual-chamber bag 3 on the clamp conveying system 2 is in a vertical state where the powder chamber 31 is above the liquid chamber 32.

[0036] The clamp conveying system 2 drives the powder-liquid dual-chamber bag 3 through the ion air system 4, the powder cavity cutting system 5, and the pre-opening bag system 6 in sequence before entering the powder filling system 7. After the powder filling is completed in the powder filling system 7, the clamp conveying system 2 drives the powder-liquid dual-chamber bag 3 through the tail welding system 9, the tail cooling system 10, and the tail welding vision inspection system 11 in sequence.

[0037] The ion wind system 4 includes several air nozzles aligned with the powder-liquid double-chamber bag 3. Ion wind generated by the ion generator is blown out from the air nozzles, which can remove impurities such as detached materials and debris generated during the bag-up and bag-down process, and at the same time remove static electricity from the double-chamber bag body.

[0038] The powder chamber cutting system 5 includes front and rear pressure plates and a cutter. The front and rear pressure plates are respectively connected to their respective pressure plate cylinders. The cutter is mounted on a cutter holder slider, which is mounted on a cutter holder slide rod. The cutter holder slide rod is fixed to the cutter holder base, and the cutter holder slider is connected to a slider cylinder. After the clamping and conveying system 2 delivers the powder-liquid dual chamber into place, the front and rear pressure plates clamp the bag from both sides. The waste edge discharge gripper clamps the waste edge of the bag, and the cutter moves laterally to cut off the waste edge, thereby cutting open the powder chamber 31 at the tail of the powder-liquid dual chamber bag 3. Afterward, the waste edge discharge gripper moves the waste edge to the waste edge collection device and discards it.

[0039] Within the pre-opening bag system 6, cylinders and suction cups are installed on both sides of the powder-liquid dual-chamber bag 3. After the suction cups hold the two sides of the bag body in the powder chamber 31 of the powder-liquid dual-chamber bag 3, the cylinders drive the suction cups to move away from each other, thereby pulling the two film materials of the bag body apart. The pre-opening bag system 6 can pre-open the powder chamber 31 before receiving powder filling, and at the same time, it can also detect the bag body after passing through the powder chamber cutting system 5 to prevent unopened bags from flowing into the powder filling system 7.

[0040] As attached Figure 2-5 As shown, the powder filling system 7 includes a bag opening mechanism 701, a bag opening visual inspection mechanism 702, a clamping cylinder 703, a powder temporary storage tank 704, a weighing mechanism 705, and a filling mechanism 706. The powder filling system 7 in this utility model is a 4-unit dispensing system, capable of simultaneously filling 4 powder-liquid dual-chamber bags 3 with powder.

[0041] As attached Figure 2 and attached Figure 3As shown, the bag opening mechanism 701 includes a bag opening cylinder 7011 and a bag opening suction cup 7012. Each powder-liquid dual-chamber bag 3 has a bag opening cylinder 7011 and a bag opening suction cup 7012 on both sides of the bag body. The bag opening suction cup 7012 is aligned with the bag body at the position of the powder chamber 31, and is fixedly mounted on the top of the piston rod of the bag opening cylinder 7011. The bag opening cylinder 7011 drives the suction cup to approach and contact the bag body at the position of the powder chamber 31. After the suction cup adheres to the bag body, the bag opening cylinder 7011 pulls the suction cups away from each other, thereby opening the opening at the top of the powder chamber 31 and maintaining the opening in an open state.

[0042] The bag opening visual inspection mechanism 702 includes four visual cameras and a light source. The cameras and light source are fixed by a bracket. The visual cameras are aimed at the opening position of the powder chamber 31 and detect the shape of the opening in real time to determine whether the opening of the powder chamber 31 is open. If the bag opening visual inspection mechanism 702 detects that the opening shape of a bag does not meet the powder filling conditions (i.e., the opening size does not meet the requirements), then the bag will not be filled with powder.

[0043] As attached Figure 4-6 As shown, in order to ensure that the opening of the powder chamber 31 is in the open state before the powder is filled, the clamp cylinder 703 below the powder-liquid double chamber bag 3 can cooperate with the bag hanging clamp 201 to squeeze the powder chamber 31.

[0044] The bag clamp 201 includes two symmetrically arranged swing arms 2012 and two rotating shafts 2013. Each swing arm 2012 can rotate within a certain range around the axis of the rotating shaft 2013. The top end of the swing arm 2012 is provided with a limiting post 2011 for suspending the powder-liquid double-chamber bag 3, and the bottom end of the swing arm 2012 is provided with an inclined abutment rod 2014.

[0045] The clamp cylinder 703 can simultaneously push the abutment rods 2014 on the four hanging bag clamps 201 in the powder filling system 7 upward through the push rod 7031. After the abutment rod 2014 is subjected to force, the bottom end of the swing arm 2012 expands outward, thereby causing the top end of the swing arm 2012 to retract inward at the same time, thereby squeezing the powder chamber 31 from the horizontal direction and causing the opening at the top of the powder chamber 31 to open.

[0046] In the powder filling system 7, the powder storage tank 704 is located at the highest point. The powder storage tank 704 is used to store powder. A powder feeding funnel 7041 is provided at the bottom of the tank. The powder feeding screw discharges a set amount of powder through the powder feeding funnel 7041 by rotating.

[0047] The weighing mechanism 705 includes a mounting bracket 7051, a weighing module 7052, and a rotating weighing scoop 7053.

[0048] Mounting bracket 7051 is used to provide support and mounting position for weighing mechanism 705, and the bottom of mounting bracket 7051 is fixed to frame 1.

[0049] The weighing module 7052 is fixed on the mounting bracket 7051, and the handle of the rotating weighing scoop 7053 is horizontally mounted on the weighing module 7052. The scoop body of the rotating weighing scoop 7053 is located directly below the powder feeding funnel 7041, thereby receiving the powder output from the powder feeding screw. The weighing module 7052 can measure the mass of the rotating weighing scoop 7053 containing powder. When the weighing result is qualified, the scoop body of the rotating weighing scoop 7053 flips over, thereby pouring the powder into the filling mechanism 706.

[0050] The filling mechanism 706 is located below the scoop body of the rotating weighing scoop 7053. The filling mechanism 706 includes a retainer 7061, a powder filling funnel 7062, and a drive cylinder (not shown in the figure).

[0051] The powder filling funnel 7062 is vertically mounted on a horizontally positioned elongated retainer 7061. The powder filling funnel 7062 is located directly below the rotating weighing scoop 7053 and directly above the powder-liquid dual-chamber bag 3. When powder is poured into the powder chamber 31, the drive cylinder causes the retainer 7061 to descend vertically, thereby allowing the bottom of all the powder filling funnels 7062 to be inserted into their corresponding powder chambers 31.

[0052] As attached Figure 1 and attached Figure 7-8 As shown, when producing certain powder-liquid dual-chamber bags 3 that require filling the powder chamber 31 with a protective gas (e.g., nitrogen), this apparatus also includes a gas filling system 8. The gas filling system 8 is located downstream of the powder filling system 7, and the fixture conveying system 2 feeds the powder-liquid dual-chamber bags 3 from the powder filling system 7 into the gas filling system 8.

[0053] The gas filling system 8 includes an air curtain box 801, a gas pipe 802, and an inflation pipe 803.

[0054] The air curtain box 801 is a rectangular shell structure with an open bottom, located directly above the powder-liquid dual-chamber bag 3. A gas pipe 802 connects to a gas source at one end and to the air curtain box 801 at the other, thus supplying gas into the air curtain box 801. The gas pipe 802 is evenly divided into several outlets within the air curtain box 801, thereby forming a vertically downward air curtain that can cover the powder-liquid dual-chamber bag 3.

[0055] The end of the inflation pipe 803 is aligned with and close to or inserted into the powder chamber 31, and gas can be filled into the powder chamber 31 through the inflation pipe 803.

[0056] The clamping and conveying system 2 feeds the powder-liquid dual-chamber bag 3, which is filled by the gas filling system 8, into the tail welding system 9. The tail welding system 9 seals the opening of the powder chamber 31 on the powder-liquid dual-chamber bag 3 by heating and welding. The tail cooling system 10 then cools the powder chamber 31 after welding. Finally, a tail welding vision inspection system 11 is set up to inspect the welding seal quality of the powder chamber 31 to prevent defective products from flowing into the next process.

[0057] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope. Thus, if such modifications and modifications fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include such modifications and modifications.

Claims

1. A novel powder liquid dual chamber bag powder filling device, characterized in that, The system includes a clamp conveying system (2) and a powder filling system (7). The clamp conveying system (2) is used to feed the powder-liquid dual-chamber bag (3) into the powder filling system (7). On the clamp conveying system (2), the powder-liquid dual-chamber bag (3) is in a state where the powder chamber (31) is above the liquid chamber (32). The powder filling system (7) includes a powder storage tank (704), a weighing mechanism (705), and a filling mechanism (706). The weighing mechanism (705) includes a weighing module. (7052) and a rotating weighing scoop (7053) installed on the weighing module (7052). The weighing module (7052) is used to measure the mass of the rotating weighing scoop (7053) containing powder. The powder storage bucket (704) outputs powder into the rotating weighing scoop (7053). When the weighing result is qualified, the rotating weighing scoop (7053) flips over and pours the powder into the filling mechanism (706). The filling mechanism (706) fills the powder into the powder chamber (31).

2. The novel powder liquid dual chamber bag powder filling device according to claim 1, characterized in that, It also includes a powder chamber cutting system (5) and a tail welding system (9). The clamp conveying system (2) drives all the powder-liquid double chamber bags (3) into the powder chamber cutting system (5), the powder filling system (7) and the tail welding system (9) in sequence. The powder chamber cutting system (5) is used to cut open the powder chamber (31) at the tail of the powder-liquid double chamber bag (3). The tail welding system (9) is used to weld and close the powder chamber (31) of the powder-liquid double chamber bag (3).

3. The novel powder liquid dual chamber bag powder filling device according to claim 1, characterized in that, The filling mechanism (706) includes a retainer (7061), a powder filling funnel (7062), and a drive cylinder. The powder filling funnel (7062) is mounted on the retainer (7061) and located above the powder-liquid double-chamber bag (3). The bottom of the powder filling funnel (7062) is aligned and can be inserted into the powder chamber (31). The drive cylinder is used to drive the retainer (7061) to rise and fall.

4. The novel powder liquid dual chamber bag powder filling device according to claim 1, characterized in that, The powder filling system (7) also includes a bag opening mechanism (701), which includes a bag opening cylinder (7011) and a bag opening suction cup (7012). The bag opening cylinder (7011) is used to drive the bag opening suction cup (7012) to approach or move away from the powder chamber (31). Both sides of the powder-liquid double chamber bag (3) are provided with bag opening mechanisms (701), and the bag opening suction cups (7012) on both sides of the powder-liquid double chamber bag (3) respectively adsorb the bag bodies on both sides of the powder chamber (31).

5. The novel powder liquid dual chamber bag powder filling device according to claim 1 or 4, characterized in that, The powder filling system (7) also includes a bag opening visual inspection mechanism (702), which is aligned with the top opening of the powder chamber (31) and is used to detect in real time whether the powder chamber (31) is open.

6. The novel powder-liquid dual-chamber bag powder filling device according to claim 1, characterized in that, It also includes a gas filling system (8), in which the clamp conveying system (2) feeds the powder-liquid dual-chamber bag (3) through the powder filling system (7) into the gas filling system (8), the gas filling system (8) including an inflation pipe (803) aligned with the powder chamber (31), through which gas can be filled into the powder chamber (31).

7. The novel powder liquid dual chamber bag powder filling device according to claim 6, characterized in that, The gas filling system (8) also includes an air curtain box (801) and a gas pipe (802). The air curtain box (801) is located directly above the powder-liquid double-chamber bag (3). The gas pipe (802) is used to uniformly deliver gas into the air curtain box (801) to form a vertically downward air curtain.

8. The novel powder liquid dual chamber bag powder filling device according to claim 6, characterized in that, It also includes a tail welding system (9), a tail cooling system (10) and a tail welding visual inspection system (11). The fixture conveying system (2) sequentially feeds the powder-liquid double-chamber bag (3) through the gas filling system (8) into the tail welding system (9), the tail cooling system (10) and the tail welding visual inspection system (11). The tail welding system (9) is used to weld and seal the powder chamber (31) of the powder-liquid double-chamber bag (3). The tail cooling system (10) is used to cool the powder chamber (31) after welding. The tail welding visual inspection system (11) is used to inspect the welding sealing quality of the powder chamber (31).

9. The novel powder liquid dual chamber bag powder filling device as claimed in claim 2, wherein, It also includes an ion air system (4) and a pre-opening bag system (6). The ion air system (4) is located upstream of the powder chamber cutting system (5), and the pre-opening bag system (6) is located downstream of the powder chamber cutting system (5) and upstream of the powder filling system (7). The ion air system (4) performs ion air purging on the powder-liquid dual-chamber bag (3), and the pre-opening bag system (6) is used to pull the opening of the powder chamber (31).

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